[SPARK-21114][TEST][2.1] Fix test failure in Spark 2.1/2.0 due to nam…

…e mismatch

## What changes were proposed in this pull request?
Name mismatch between 2.1/2.0 and 2.2. Thus, the test cases failed after we backport a fix to 2.1/2.0. This PR is to fix the issue.

https://amplab.cs.berkeley.edu/jenkins/view/Spark%20QA%20Test/job/spark-branch-2.1-test-maven-hadoop-2.7/lastCompletedBuild/testReport/org.apache.spark.sql/SQLQueryTestSuite/arithmetic_sql/

https://amplab.cs.berkeley.edu/jenkins/view/Spark%20QA%20Test/job/spark-branch-2.0-test-maven-hadoop-2.2/lastCompletedBuild/testReport/org.apache.spark.sql/SQLQueryTestSuite/arithmetic_sql/

## How was this patch tested?
N/A

Author: gatorsmile <gatorsmile@gmail.com>

Closes #18319 from gatorsmile/fixDecimal.

sql/core/src/test/resources/sql-tests/results/arithmetic.sql.out

@@ -281,15 +281,15 @@ struct<CEIL(CAST(1 AS DOUBLE)):bigint>
 -- !query 34
 select ceil(1234567890123456)
 -- !query 34 schema
-struct<CEIL(1234567890123456):bigint>
+struct<CEIL(CAST(1234567890123456 AS DOUBLE)):bigint>
 -- !query 34 output
 1234567890123456
 
 
 -- !query 35
 select ceiling(1234567890123456)
 -- !query 35 schema
-struct<CEIL(1234567890123456):bigint>
+struct<CEIL(CAST(1234567890123456 AS DOUBLE)):bigint>
 -- !query 35 output
 1234567890123456
 
@@ -329,7 +329,7 @@ struct<FLOOR(CAST(1 AS DOUBLE)):bigint>
 -- !query 40
 select floor(1234567890123456)
 -- !query 40 schema
-struct<FLOOR(1234567890123456):bigint>
+struct<FLOOR(CAST(1234567890123456 AS DOUBLE)):bigint>
 -- !query 40 output
 1234567890123456
 

sql/core/src/test/resources/sql-tests/results/inner-join.sql.out

@@ -1,5 +1,5 @@
 -- Automatically generated by SQLQueryTestSuite
--- Number of queries: 13
+-- Number of queries: 7
 
 
 -- !query 0
@@ -65,4 +65,3 @@ struct<a:int,tag:string>
 1	a
 1	b
 1	b
-